#dypic{
	width: 100%;
	height: 100%;
	position: relative;
}
#dypic img{
	width: 100%;
}
.box{
	width: 50%;
	height: 10rem;
	background: transparent;
	position: absolute;
	bottom: 15rem;
	margin-left: -25%;
	left: 50%;
}
.headaL{
	width: 2rem;
    height: 2.5rem;
    position: fixed;
    left: 1rem;
    top: 3rem;
}
.headaL img{
	width: 1.5rem;
	height: 100%;
}